Paritosh Shroff Christian Skalka Scott F. Smith The Nuggetizer: Abstracting Away Higher-Orderness for Program Verification. 2-18 2007 conf/aplas/2007 APLAS http://dx.doi.org/10.1007/978-3-540-76637-7_2 db/conf/aplas/aplas2007.html#ShroffSS07